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PubMed1976

[Biochemistry of benign-symmetrical lipomatosis (adenolipomatosis Launois-Bensaude, Madelung's disease)].

1. Total lipids, total cholesterol, cholesterol esters, phospholipids, triglycerides and free fatty acids as well as the fatty acids profiles of the different lipid classes were determined in serum, lipomatous and normal adipose tissue. Triglycerides were elevated in patient L's serum. The distribution of serum lipoproteins in this patient's serum showed a type IV according to Fredrickson. All other lipid parameters were within the normal range. Palmitoleic acid was increased nearly in all lipid fractions of the patients' sera as well as in the lipids of lipomatous subcutaneous adipose tissue. 2. The lipomatous adipose tissues of the patients showing no histological abnormalities revealed higher levels of cyclic AMP than normal subcutaneous adipose tissue. 3. Serum uric acid was normal (patient E.), between the normal and pathological range (patient L.) and elevated (patient W.). Urinary uric acid excretion was increased in all three patients. 4. 14C-glycine was overincorporated into urinary uric acid in all three patients. 5. Adenine phosphoribosyltransferase activities in the hemolysates were within the normal range. A decrease of hypoxanthine-guanine phosphoribosyltransferase activities could be demonstrated in two patients' (e., w.) erythrocytes. Erythrocyte phosphoribosylpyrophate synthetase activity was slightly increased in patient L.'s and twice the normal value in patient W.'s erythrocytes.

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